Despite the happy-sounding title, the lyrics for this song come from a dark place. "To me this was actually a song about a girl that cut her head off and sewed it upside down so that she'd always be smiling because she always frowns," Simpson told MTV News. "It's intense, but the sad girl pretends to be happy."
Kid Rock's "All Summer Long" is a mashup of "Werewolves Of London" and "Sweet Home Alabama." The album it came from was released in October, 2007, but they held off until summer, 2008 for a more seasonable release.